(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.
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chemical equation
a symbolic representation of the reactants and products in a chemical reaction
prototype
an early sample of a product that provides information about how the device or system works
reclaim
to retrieve waste material so it can be used again
precipitate
insoluble solid formed when two liquids mix
evidence
information that supports or refutes a claim
products
final substance at the end of a chemical reaction
trade-off
desirable outcome given up to gain another desirable outcome
atom
The basic building block of matter
Contain protons, electrons and neutrons
open system
A system that allows matter or energy to enter or escape.
chemical reaction
process where chemical change occurs
exothermic
process that releases energy; temperature increases (product is warmer than the reactants)
mass
amount of matter in an object
conserved
saved, neither gained nor lost
constraint
something that limits the solution to a problem
physical change
change that occurs when the particles of one substance mix with another substance, particles do not change
law of conservation of mass
The principle (or scientific law) that mass is neither created nor destroyed during a chemical reaction. See law of conservation of mass.
criteria
a minimum requirement for how the design must function
chemical change
substances interact to form a new substance
thermal energy
total energy of motion of the particles in a sample of a substance
molecule
Two or more atoms held together by a chemical bond (any two or more atoms)
EX: H2O or O2
reactants
original substances before a chemical reaction takes place
state
physical form of matter: solid, liquid, gas
etch
chemical process that cuts into a solid surface
endothermic
process that absorbs energy; temperature decreases (product is cooler than the reactants)
closed system
A system that does not allow matter or energy to enter or escape.
circuit board
a thin board with copper lines on the surface
dissolve
mix into another substance at the scale of individual particles
compound
Two or more different types of atoms held together by a chemical bond
EX: : H2O or CO2
